Martin, J. Campbell
The succesfull engineer : personal and professional skills a sourcebook
McGraw-Hill, 1993
 Buku Teks SO
Francis Peter S.J.
Soft skills and professional communication
Tata McGraw-Hill, 2012
 Buku Teks SO
Heye, Dennie
Characteristics of the successful twenty-first century information professional
Chandos Publishing, 2006
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Kinlaw, Dennis C.
The ASTD trainer's sourcebook: facilitation skills create your own training program
McGraw-Hill, 1996
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Nurse practitioners: Clinical skills and professional issues
edited by Mike Walsh, Alison Crumbie, Shirley Reveley
Butterworth-Heinemann, 1999
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